Granted Patent
Utility
US 4,378,372 · App. 06/350,451
Cyclopropanecarboxylic acid esters and use thereof in pest control
Inventors:
Peter Ackermann, Laurenz Gsell, Rudolf Wehrli
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Feb 19, 1982
Inventors
Peter Ackermann
Laurenz Gsell
Rudolf Wehrli
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.